Box-car ladder.



0. ANDERSON.

BOX GAR. LADDER;

APPLIOATIQN FILED NOV. 27 1911.

Patented Apr. 9, 1912.

' onorjnmnnson, or CHICAGO, rumors.

- Specification ot Letters Patent.

Patented Apr. 9, 1912.

A Application filed November 27, 1911-. Serial No. 662,623.

To all whom it may concern:

.Be it known that vI, OLOF ANDERSON, a

citizen of the United States, residing at Chicago, in the county of Cookan State of Illinois, have'invented anew and useful Improvement inBox-Car Ladders, of which the following is a specification;

My object is to provide simpleand improved means for the attachment ofside and end ladderrounds to box-cars, whereby the rounds may be securedat their outer ends to the corner-posts of the car-body,

and the objection to the use of lag-screws, hitherto employed as suchsecuring means, is overcome.

It is also my object to provide particularly-strong and durable meansfor this purpose, which will permit removal. and replacementof therounds with little difficulty and without danger of injury to the postsor sheathing of the car-body.

Referring to the drawings, Figure 1 is a broken elevation of a corner ofa box-car body; Fig. 2, an enlarged plan section taken on line 2 in Fig."1 and illustrating my improved means for securing adjacent end andsideladder-rounds in place; and Figs. 3 and 4, enlarged perspectiveviews of interlocking bolts or members for securing the ends of adjacentladder-rounds to a carbody corner-post.

.The reference'numeral 5 designates the corner-post of a box-car body,6, one of the end posts, and 7, one of the side posts, to which poststhe outer sheathing-8 and inner sheathing 9 are secured, all in theusual way. The ladder-rounds 10 are of stirrup shape, having enlargedflat and perforated ends or eyes 11 at which they are secured in place.It is desirable, particularly in thecase of the end ladder-rounds, thatthey shall extend as ,nearly as possible to the cornersof the car, to bewithin convenient reach of the brakeman. For this reason it has beenusual to secure the outer ends of the ladder-rounds to the corner-postsby means of lagscrews. This mode offastening has been found in practiceto be inse-.

corner-posts by means of ordinary bolts necessitates the employment of.additional posts or studding through which the bolts may pass.

In carrying out my invention, the inner ends of the rounds are fastenedin place with bolts. 12 passing through the inher and outer sheathingand theintermediate posts 6, 7, as shown, while the" outer ends of therounds are fastened in place by means of the bolts .13 and 14.Intersecting sockets 15, 16, of approximately the exact size necessaryto receive the bolts 13, 14, are cut' in the corner-posts; the bolt orattaching member 14 is provided with an enlarged opening or eye 17 fromwhich extends the reduced slot 18; and the bolt or attaching member 13has a head 19 and reduced neck portion 20.. In placing the parts inposition, the bolt 14 is passed into the socket 16 to the base of thelatter to cause its eye 17 to extend in line with the socket 15. Thebolt 13is then passed into the latter socket and through the eye 17 ofthe bolt 14 until its reduced neck portion 20 registers with the slot18. The bolt 14 is then drawn in the outward direction, thereby causingit, atits slot- 18, to receive the neck 20 and thus lock the two boltsor members together. The

outereyes 11 of the rounds 10are passed over the threaded projectingends of the bolts 13, 14 and secured thereto by nuts 21. Thisconstruction of interlocking bolts forms a very secure attaching meansfor the rounds, and if at any time it becomes necessary or desirable toremove and replace the bolts, this may be done without injury to theposts 5 or the necessity of tearing out the sheathing 9 or 8.

The foregoing description is intended to convey a clear understanding ofmy improvements in what I now believe to be the best form of theirembodiment, and no un-- due limitation should be understood therefrom.

It is my intention to claim all that is novel in my invention and thatthe claims shall be construed as broadly as the prior state of the artmay warrant.

What I claim as new and desire to secure .by Letters Patent is 1. In acar-body, the combination of a i corner-post provided with intersectingsockets in its outer faces, and ladder-round attaching-bolts extendingin said sockets and interlocking therein with each other.

In a car-body, the combination of a corner-post provided withintersecting sockets in its outer faces, andltltidQf-l'UUlldiltinching-bolts extending in said sockets anddetuehnbty interlocking therein with we each other.

3. In :1 211'b0d the combination of a corner-post provided withintersecting sockets in its outer tacos, and 1zidder-ron11dattaching-bolts, extending in said sockets one 10 having a head and theother having an eye receivmg and holding said head 1n detachable loeklngengagement at the intersection of the sockets.

OLOF ANDERSON. In presence of R. A. RAYMOND, O. G. AvIsUs.

